Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-frv/registers.h b/include/asm-frv/registers.h
new file mode 100644
index 0000000..fccfd95
--- /dev/null
+++ b/include/asm-frv/registers.h
@@ -0,0 +1,255 @@
+/* registers.h: register frame declarations
+ *
+ * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+/*
+ * notes:
+ *
+ * (1) that the members of all these structures are carefully aligned to permit
+ * usage of STD/STDF instructions
+ *
+ * (2) if you change these structures, you must change the code in
+ * arch/frvnommu/kernel/{break.S,entry.S,switch_to.S,gdb-stub.c}
+ *
+ *
+ * the kernel stack space block looks like this:
+ *
+ * +0x2000 +----------------------
+ * | union {
+ * | struct user_context
+ * | struct pt_regs [user exception]
+ * | }
+ * +---------------------- <-- __kernel_frame0_ptr (maybe GR28)
+ * |
+ * | kernel stack
+ * |
+ * |......................
+ * | struct pt_regs [kernel exception]
+ * |...................... <-- __kernel_frame0_ptr (maybe GR28)
+ * |
+ * | kernel stack
+ * |
+ * |...................... <-- stack pointer (GR1)
+ * |
+ * | unused stack space
+ * |
+ * +----------------------
+ * | struct thread_info
+ * +0x0000 +---------------------- <-- __current_thread_info (GR15);
+ *
+ * note that GR28 points to the current exception frame
+ */
+
+#ifndef _ASM_REGISTERS_H
+#define _ASM_REGISTERS_H
+
+#ifndef __ASSEMBLY__
+#define __OFFSET(X) (X)
+#define __OFFSETC(X,N) xxxxxxxxxxxxxxxxxxxxxxxx
+#else
+#define __OFFSET(X) ((X)*4)
+#define __OFFSETC(X,N) ((X)*4+(N))
+#endif
+
+/*****************************************************************************/
+/*
+ * Exception/Interrupt frame
+ * - held on kernel stack
+ * - 8-byte aligned on stack (old SP is saved in frame)
+ * - GR0 is fixed 0, so we don't save it
+ */
+#ifndef __ASSEMBLY__
+
+struct pt_regs {
+ unsigned long psr; /* Processor Status Register */
+ unsigned long isr; /* Integer Status Register */
+ unsigned long ccr; /* Condition Code Register */
+ unsigned long cccr; /* Condition Code for Conditional Insns Register */
+ unsigned long lr; /* Link Register */
+ unsigned long lcr; /* Loop Count Register */
+ unsigned long pc; /* Program Counter Register */
+ unsigned long __status; /* exception status */
+ unsigned long syscallno; /* syscall number or -1 */
+ unsigned long orig_gr8; /* original syscall arg #1 */
+ unsigned long gner0;
+ unsigned long gner1;
+ unsigned long long iacc0;
+ unsigned long tbr; /* GR0 is fixed zero, so we use this for TBR */
+ unsigned long sp; /* GR1: USP/KSP */
+ unsigned long fp; /* GR2: FP */
+ unsigned long gr3;
+ unsigned long gr4;
+ unsigned long gr5;
+ unsigned long gr6;
+ unsigned long gr7; /* syscall number */
+ unsigned long gr8; /* 1st syscall param; syscall return */
+ unsigned long gr9; /* 2nd syscall param */
+ unsigned long gr10; /* 3rd syscall param */
+ unsigned long gr11; /* 4th syscall param */
+ unsigned long gr12; /* 5th syscall param */
+ unsigned long gr13; /* 6th syscall param */
+ unsigned long gr14;
+ unsigned long gr15;
+ unsigned long gr16; /* GP pointer */
+ unsigned long gr17; /* small data */
+ unsigned long gr18; /* PIC/PID */
+ unsigned long gr19;
+ unsigned long gr20;
+ unsigned long gr21;
+ unsigned long gr22;
+ unsigned long gr23;
+ unsigned long gr24;
+ unsigned long gr25;
+ unsigned long gr26;
+ unsigned long gr27;
+ struct pt_regs *next_frame; /* GR28 - next exception frame */
+ unsigned long gr29; /* GR29 - OS reserved */
+ unsigned long gr30; /* GR30 - OS reserved */
+ unsigned long gr31; /* GR31 - OS reserved */
+} __attribute__((aligned(8)));
+
+#endif
+
+#define REG_PSR __OFFSET( 0) /* Processor Status Register */
+#define REG_ISR __OFFSET( 1) /* Integer Status Register */
+#define REG_CCR __OFFSET( 2) /* Condition Code Register */
+#define REG_CCCR __OFFSET( 3) /* Condition Code for Conditional Insns Register */
+#define REG_LR __OFFSET( 4) /* Link Register */
+#define REG_LCR __OFFSET( 5) /* Loop Count Register */
+#define REG_PC __OFFSET( 6) /* Program Counter */
+
+#define REG__STATUS __OFFSET( 7) /* exception status */
+#define REG__STATUS_STEP 0x00000001 /* - reenable single stepping on return */
+#define REG__STATUS_STEPPED 0x00000002 /* - single step caused exception */
+#define REG__STATUS_BROKE 0x00000004 /* - BREAK insn caused exception */
+#define REG__STATUS_SYSC_ENTRY 0x40000000 /* - T on syscall entry (ptrace.c only) */
+#define REG__STATUS_SYSC_EXIT 0x80000000 /* - T on syscall exit (ptrace.c only) */
+
+#define REG_SYSCALLNO __OFFSET( 8) /* syscall number or -1 */
+#define REG_ORIG_GR8 __OFFSET( 9) /* saved GR8 for signal handling */
+#define REG_GNER0 __OFFSET(10)
+#define REG_GNER1 __OFFSET(11)
+#define REG_IACC0 __OFFSET(12)
+
+#define REG_TBR __OFFSET(14) /* Trap Vector Register */
+#define REG_GR(R) __OFFSET((14+(R)))
+#define REG__END REG_GR(32)
+
+#define REG_SP REG_GR(1)
+#define REG_FP REG_GR(2)
+#define REG_PREV_FRAME REG_GR(28) /* previous exception frame pointer (old gr28 value) */
+#define REG_CURR_TASK REG_GR(29) /* current task */
+
+/*****************************************************************************/
+/*
+ * extension tacked in front of the exception frame in debug mode
+ */
+#ifndef __ASSEMBLY__
+
+struct pt_debug_regs
+{
+ unsigned long bpsr;
+ unsigned long dcr;
+ unsigned long brr;
+ unsigned long nmar;
+ struct pt_regs normal_regs;
+} __attribute__((aligned(8)));
+
+#endif
+
+#define REG_NMAR __OFFSET(-1)
+#define REG_BRR __OFFSET(-2)
+#define REG_DCR __OFFSET(-3)
+#define REG_BPSR __OFFSET(-4)
+#define REG__DEBUG_XTRA __OFFSET(4)
+
+/*****************************************************************************/
+/*
+ * userspace registers
+ */
+#ifndef __ASSEMBLY__
+
+struct user_int_regs
+{
+ /* integer registers
+ * - up to gr[31] mirror pt_regs
+ * - total size must be multiple of 8 bytes
+ */
+ unsigned long psr; /* Processor Status Register */
+ unsigned long isr; /* Integer Status Register */
+ unsigned long ccr; /* Condition Code Register */
+ unsigned long cccr; /* Condition Code for Conditional Insns Register */
+ unsigned long lr; /* Link Register */
+ unsigned long lcr; /* Loop Count Register */
+ unsigned long pc; /* Program Counter Register */
+ unsigned long __status; /* exception status */
+ unsigned long syscallno; /* syscall number or -1 */
+ unsigned long orig_gr8; /* original syscall arg #1 */
+ unsigned long gner[2];
+ unsigned long long iacc[1];
+
+ union {
+ unsigned long tbr;
+ unsigned long gr[64];
+ };
+};
+
+struct user_fpmedia_regs
+{
+ /* FP/Media registers */
+ unsigned long fr[64];
+ unsigned long fner[2];
+ unsigned long msr[2];
+ unsigned long acc[8];
+ unsigned char accg[8];
+ unsigned long fsr[1];
+};
+
+struct user_context
+{
+ struct user_int_regs i;
+ struct user_fpmedia_regs f;
+
+ /* we provide a context extension so that we can save the regs for CPUs that
+ * implement many more of Fujitsu's lavish register spec
+ */
+ void *extension;
+} __attribute__((aligned(8)));
+
+#endif
+
+#define NR_USER_INT_REGS (14 + 64)
+#define NR_USER_FPMEDIA_REGS (64 + 2 + 2 + 8 + 8/4 + 1)
+#define NR_USER_CONTEXT (NR_USER_INT_REGS + NR_USER_FPMEDIA_REGS + 1)
+
+#define USER_CONTEXT_SIZE (((NR_USER_CONTEXT + 1) & ~1) * 4)
+
+#define __THREAD_FRAME __OFFSET(0)
+#define __THREAD_CURR __OFFSET(1)
+#define __THREAD_SP __OFFSET(2)
+#define __THREAD_FP __OFFSET(3)
+#define __THREAD_LR __OFFSET(4)
+#define __THREAD_PC __OFFSET(5)
+#define __THREAD_GR(R) __OFFSET(6 + (R) - 16)
+#define __THREAD_FRAME0 __OFFSET(19)
+#define __THREAD_USER __OFFSET(19)
+
+#define __USER_INT __OFFSET(0)
+#define __INT_GR(R) __OFFSET(14 + (R))
+
+#define __USER_FPMEDIA __OFFSET(NR_USER_INT_REGS)
+#define __FPMEDIA_FR(R) __OFFSET(NR_USER_INT_REGS + (R))
+#define __FPMEDIA_FNER(R) __OFFSET(NR_USER_INT_REGS + 64 + (R))
+#define __FPMEDIA_MSR(R) __OFFSET(NR_USER_INT_REGS + 66 + (R))
+#define __FPMEDIA_ACC(R) __OFFSET(NR_USER_INT_REGS + 68 + (R))
+#define __FPMEDIA_ACCG(R) __OFFSETC(NR_USER_INT_REGS + 76, (R))
+#define __FPMEDIA_FSR(R) __OFFSET(NR_USER_INT_REGS + 78 + (R))
+
+#endif /* _ASM_REGISTERS_H */